Operate an amusement park right in your home as you build thrilling rides with K'NEX 3-in-1 Classic Amusement Park Building Set! This building set consists of colorful parts and pieces that allow you and your children to create 3 different models, one at a time. Create a majestic Ferris wheel that stands almost 3 feet tall, a heart-pounding boom ride, or an exciting swing ride (all models can be built one at a time).usement park right in your home as you build thrilling rides with K'NEX 3-in-1 Classic Amusement Park Building Set! This building set consists of colorful parts and pieces that allow you and your children to create 3 different models, one at a time. Create a majestic Ferris wheel that stands almost 3 feet tall, a heart-pounding boom ride, or an exciting swing ride. All models can be built one at a time.